Canine Skin Ailments That Cause Hair Loss
If your dog is suddenly shedding more than usual and everything in your house seems covered in dog hair, it might be time to call the vet. Canine hair loss (also called canine alopecia) can be caused by serious illnesses.
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Normal vs. Abnormal
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Dalmation with hair loss and skin irritation
Dogs normally shed as the seasons change, but if your dog has bald patches or red, scaly, irritated skin, you should seek medical treatment.
Flea Allergy
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A Flea
An allergy to flea bites is a common cause of hair loss, scratching and skin irritation. Treat the dog and your home for fleas. If the allergy is very serious, the dog may need medication.
Infection
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Mange on a dog's leg
Viral and bacterial infections (such as ringworm and thrush), or parasitical infections like mange, can cause a dog to shed excessively. It is important to treat infections as quickly as possible because they can be passed to humans.
Other Allergies
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Dogs can be allergic to foods or common household items like perfumes, shampoos and cleaning products. Try to remove the irritant from your home, because allergies can cause skin irritation and hair loss.
Cushing's Syndrome
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Hair loss accompanied by a sudden weight gain in the torso, frequent urination, and frequent eating and drinking are symptoms of Cushing's syndrome. Cushing's syndrome is usually caused by extended corticosteroid use, and sometimes by pituitary or adrenal tumors (see Resources).
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